Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
With the arrival of September, Port Norris experiences a modest decline in average high-temperatures, transitioning from a moderately hot 82°F (27.8°C) in August to a still warm 75.9°F (24.4°C). Port Norris's temperature lowers to a mean of 62.8°F (17.1°C) during the nights in September.Humidity
In September, the average relative humidity is 78%.Rainfall
In Port Norris, in September, during 11.1 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. Throughout the year, in Port Norris, there are 132.2 rainfall days, and 15.39" (391mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September in Port Norris is 12h and 26min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:30 pm. On the last day of September, sunrise is at 6:55 am and sunset at 6:43 pm EDT.
Sunshine
In September, the average sunshine is 9.3h.UV index
In Port Norris, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 5 in September translates into this advice:
Undertake precautions - Obligation exists to protect against skin and eye damage. It's recommended to limit sun exposure when its radiation is at its peak during midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Port Norris have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Port Norris have in September?
What is the UV index reading in September?
Average temperature in September
Port Norris, NJ
- Average high temperature in September: 75.9°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in September: 62.8°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in September
Port Norris, NJ
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Port Norris, NJ
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in September
Port Norris, NJ
- Average humidity in September: 78%
The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Port Norris, NJ
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is August (1.81").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in September
Port Norris, NJ
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is November (7.3 days).
Average snowfall in September
Port Norris, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Port Norris, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Port Norris, NJ
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in September
Port Norris, NJ
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is November (21.6 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in September
Port Norris, NJ
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Port Norris, NJ
- Average cloud cover in September: 33
The months with the most cloud cover are February and March (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in September
Port Norris, NJ
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Port Norris, New Jersey, USA
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